It didn't take long before the internet began commenting back with warm birthday wishes and gushing over his adorable smile. But besides those comments, some royal fans were drawing connections between the third-in-line royal and his late grandmother, Princess Diana, as the Daily Mail pointed out.

To draw even more comparisons, fans often say Charlotte is also a mini version of her great-grandmother, Queen Elizabeth. After watching the evidence below, we think you'll agree that, again, it's a valid conclusion.

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As you can gather, there are definitely some strong royal genes that have been passed down through the generations. And we're sure when/if Meghan and Harry decide to have children of their own, we'll see similar comparisons emerge. In the meantime, we're left wondering who the internet thinks Prince Louis looks like the most ... thoughts?

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